AP EAMCET · Maths · Differentiation
Suppose exists for all real . If and then which one among the following statements is definitely true?
- A for some
- B for some
- C for some
- D for some
Answer & Solution
Correct Answer
(B) for some
Step-by-step Solution
Detailed explanation
Consider f(x)=ax2+bx+c f(2)=4a+2b+c=2 …I f(3)=9a+3b+c=5 …II f(4)=16a+4b+c=10 …III Subtract equation I from equation II, 5a+b=3 …IV Subtract equation II from equation III, 7a+b=5 …V Subtract equation IV from equation V, 2a=2…
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